Home / 66,143,529.60-99,218,404.80-20,706,806.40

Finding the Fourth Proportional to 66,143,529.60, 99,218,404.80 and 20,706,806.40

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Solution

The fourth proportional to 66,143,529.60, 99,218,404.80 and 20,706,806.40 is: 31,061,183.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,143,529.60 : 99,218,404.80 = 20,706,806.40 : x
  2. Step 2: Convert to fraction form
    66,143,529.60/99,218,404.80 = 20,706,806.40/x
  3. Step 3: Cross multiply
    66,143,529.60x = 99,218,404.80 × 20,706,806.40
  4. Step 4: Simplify right side
    66,143,529.60x = 2,054,496,299,510,430.50
  5. Step 5: Solve for x
    x = 2,054,496,299,510,430.50/66,143,529.60
  6. Step 6: Final answer
    x = 31,061,183.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.